Motor speed controller



FIG. 1 is a perspective view of a motor speed controller showing our newdesign;

FIG. 2 is a front view of a motor speed controller showing our newdesign on a slightly larger scale;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view of a motor speed controller showing our new designon an even larger scale;

FIG. 7 is a bottom view thereof.

The ornamental design for a motor speed controller, as shown anddescribed.